On CentOS 7.7 or earlier /var/log/maillog could have entries such as
"Your ClamAV installation is OUTDATED!"
"Local version: 0.102.2 Recommended version: 0.102.3"
It is possible to run an update to the get the ClamAV 0.102.3-1 version installed to provide protection by the latest Anti-Virus software and stop these log entries, just run
yum update clamav -y
/var/log/yum.log will show the rpm that have been Installed and Updated,
Jun 12 17:37:02 Installed: libprelude-5.1.1-1.el7.x86_64
Jun 12 17:37:03 Updated: clamav-filesystem-0.102.3-1.el7.noarch
Jun 12 17:37:04 Updated: clamav-update-0.102.3-1.el7.x86_64
Jun 12 17:37:05 Updated: clamav-lib-0.102.3-1.el7.x86_64
Jun 12 17:37:06 Updated: clamd-0.102.3-1.el7.x86_64
Jun 12 17:37:07 Updated: clamav-0.102.3-1.el7.x86_64
CentOS 7.8 uses ClamAV 0.102.3-1 already.
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